[BUG] package.json vars documentation seems outdated

What / Why

Apparently many package.json vars have been removed since v6 (reference). But docs are still pointing to them here:

You can access these variables in your code with process.env.npm_package_name and process.env.npm_package_version, and so on for other fields.

and here:

Objects are flattened following this format, so if you had {"scripts":{"install":"foo.js"}} in your package.json, then you'd see this in the script:
process.env.npm_package_scripts_install === "foo.js"

References

• https://github.com/npm/cli/issues/2609
• https://docs.npmjs.com/cli/v8/using-npm/scripts#packagejson-vars
• https://docs.npmjs.com/cli/v8/using-npm/scripts#current-lifecycle-event

Start with the two linked npm scripts documentation sections and compare their package.json variable claims with npm/cli issue #2609. Revise the passages so they match supported behavior; done means the examples and wording no longer describe removed variables.